block.java

自己编写的扫雷游戏的源代码

package screen;

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.Event.*;


/**
 * Title:
 * Description:
 * Copyright:    Copyright (c) 2004
 * Company:
 * @author
 * @version 1.0
 */


public class Block extends JPanel implements MouseListener
{
  /////////////////////////////////////////////////////////////////////////////
  /**all properties */
  int posRow;                       // * posRow define the X position in the panel
  int posCol;                       // * posCol define the Y postiion in the panel

  /* @buttonStatus
    0: unopened
    1: opened
    2: identified
  */
  int buttonStatus=0;

  boolean hasMine=false;

  int arroundMines=0;

  /* the showing image in the block
    -1: the block is not clicked

    0: blankBlock
    1~8: text from 1 to 8
    9: mine
    10: flag
    11: touch mine
    12: wrongly identified
  */
  int content = 0;

  MinesPanel parentPanel;

  boolean gameOvered ;

  Color backgroundColor=new Color(212,208,200);

  /////////////////////////////////////////////////////////////////////////////
  public Block(MinesPanel panel){
    parentPanel = panel;
    try {
      jbInit();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }



  /////////////////////////////////////////////////////////////////////////////

  /*Mouse Event :  public void mouseClicked(MouseEvent e)
  */
  public void mouseClicked(MouseEvent e)
  {
      if(gameOvered )  return;


      int clickCount = e.getClickCount();
      /* left mouse button is clicked */
      if(e.getModifiers()==InputEvent.BUTTON1_MASK)
      {

        if (clickCount==1)         //single-clicked
        {
          //System.out.println("Single-clicked");
          if(this.buttonStatus == 0)
          {

            if (openArea() && this.arroundMines == 0)
            {
              this.parentPanel.openNearArea(this.posRow,this.posCol);
            }
          }

        }
        else  if(clickCount==2)   //double-clicked
       {
          parentPanel.openNearArea(this.posRow,this.posCol );
       }

     }

  }



  public void mouseExited(MouseEvent e)
  {
  }

  public void mouseEntered(MouseEvent e)
  {
  }



  public void mouseReleased(MouseEvent e)
  {
      if(gameOvered )  return;

      if(e.getModifiers()==InputEvent.BUTTON1_MASK)
      {
        if(this.buttonStatus == 0)   setBorder(BorderFactory.createRaisedBevelBorder());
      }

  }



  public void mousePressed(MouseEvent e)
  {
      if(gameOvered )  return;
      int clickCount = e.getClickCount();

      //only left mouse is pressed
      if(e.getModifiers()==InputEvent.BUTTON1_MASK)
      {
        if (clickCount==1)
        {
          if (this.buttonStatus ==0)
            setBorder(BorderFactory.createLineBorder(Color.gray));
        }
        //else  //both --------right left
        else if(clickCount == 2)
        {
          //parentPanel.doubleButtonPressed(this.posRow,this.posCol );
        }

      }      // only the right mouse is pressed--show the red
      else if(e.getModifiers()==InputEvent.BUTTON3_MASK )
      {
          if (buttonStatus==0)
          {
            this.showFlag();
            parentPanel.addIdentifiedMines(true);
          }
          else if (buttonStatus ==2)
          {
            this.showNull();
            parentPanel.addIdentifiedMines(false);
          }

      }

  }


  /*
    public void gameOver()
    called by : MinesPanel
  */
  public void gameOver()
  {
    gameOvered = true;

    if (this.hasMine)
    {
      if (this.buttonStatus == 0 )
      {
        this.showMine();
      }
    }
    else if (this.buttonStatus ==2)
    {
      this.showWrongIdentify();
    }
  }



  public boolean openArea()
  {
      parentPanel.leftButtonClicked(posRow,posCol);

      this.setBorder(BorderFactory.createLineBorder(Color.gray,1));

      if (this.hasMine)
      {
        /////////////////////////////////////////
        //Game over
        this.showTouchMine();
        parentPanel.gameOver();
        return false;

      }
      else
      {
        this.showText(this.arroundMines);
      }

      return true;
  }



  public void setArroundMines(int mines)
  {
    this.arroundMines= mines;
  }



  public int getArroundMines()
  {
    return this.arroundMines;
  }



  public void setHasMine(boolean has)
  {
    this.hasMine = has;
  }



  public void setPosition(int row,int col)
  {
    this.posRow = row;
    this.posCol = col;
  }



  public void reset()
  {
    buttonStatus=0;
    hasMine=false;
    arroundMines=2;
    content = 0;
    gameOvered = false;

    setBackground(this.backgroundColor);
    setBorder(BorderFactory.createRaisedBevelBorder());

    repaint();
  }



  public boolean isFlag()
  {
    if(this.buttonStatus == 2)
      return true;

    return false;
  }



  public boolean isOpened()
  {
    if (this.buttonStatus ==1)
      return true;

    return false;
  }


  public boolean untouched()
  {
    return (this.buttonStatus ==0);
  }

  /* identified mine correctly*/
  public boolean correctlyIdentified()
  {
    if(!this.hasMine  && this.buttonStatus ==2)  return false;
    //System.out.println(String.valueOf(this.posRow )+","+String.valueOf(posCol));
    //System.out.println(" hasMine "+String.valueOf(hasMine)+"  button Status:"+String.valueOf(buttonStatus));
    return true;
  }


  public void paint(Graphics g)
  {
    super.paint(g);

    switch(this.content)
    {
      case 0: this.drawNull(g);break;
      case 1:
      case 2:
      case 3:
      case 4:
      case 5:
      case 6:
      case 7:
      case 8: this.drawText(g,content);   break;
      case 9: this.drawMine(g);   break;
      case 10:  this.drawFlag(g);   break;
      case 11:  this.drawTouchMine(g);  break;
    }

  }



  //****************************************************************************
  //private method

  private void showNull()
  {
    this.content =0;
    this.buttonStatus = 0;
    this.repaint();
  }



  private void showText(int text)
  {
    this.content = text;
    this.buttonStatus = 1;
    this.repaint() ;
  }



  private void showMine()
  {
    this.content = 9;
    this.buttonStatus = 1;
    repaint();
  }



  private void showFlag()
  {
    this.content = 10;
    this.buttonStatus = 2;    //right mouse is clicked
    repaint();
  }



  private void showTouchMine()
  {
    this.content =11;
    this.buttonStatus = 1;
    repaint();
  }



  private void showWrongIdentify()
  {
    this.content = 12;
    repaint();
  }



  private void drawNull(Graphics g)
  {
    //this.setBackground(Color.lightGray);
    g.clearRect(2,2,17,17);
  }



  private void drawText(Graphics g, int text)
  {
    g.clearRect(2,2,17,17);

    switch(text)
    {
      case 1: this.setForeground(Color.blue); break;
      case 2: this.setForeground(new Color(0,80,0)); break;
      case 3: this.setForeground(Color.red); break;
      case 4: this.setForeground(new Color(0,0,100)); break;
      case 5: this.setForeground(new Color(100,50,0)); break;
      case 6: this.setForeground(Color.magenta); break;
      case 7: this.setForeground(Color.yellow); break;
      case 8: this.setForeground(Color.black); break;
    }
    g.setFont(new Font("SansSerif",1,13));
    g.drawString(String.valueOf(text),6,15);

  }

  private void drawMine(Graphics g)
  {
    g.setColor(Color.black);
    g.drawLine(4,10,16,10);
    g.drawLine(10,4,10,16);
    g.fillOval(6,6,9,9);
    g.setColor(Color.white);
    g.fillRect(8,8,2,2);
  }



  private void drawFlag(Graphics g)
  {
    g.setColor(Color.black);
    g.drawLine(10,4,10,14);
    g.drawLine(7,13,12,13);
    g.fillRect(5,14,10,2);

    g.setColor(Color.red);

    int xp[];
    int yp[];
    xp = new int[3];
    yp = new int[3];
    xp[0]=11; yp[0]=3;
    xp[1]=11; yp[1]=10;
    xp[2]=3;  yp[2]=7;
    g.fillPolygon(xp,yp,3);
  }



  private void drawTouchMine(Graphics g)
  {
    this.setBackground(Color.red);
    this.drawMine(g);
  }



  private void drawWrongIdentify(Graphics g)
  {
    this.drawMine(g);
    g.setColor(Color.red);

    g.drawLine(5,5,15,15);
    g.drawLine(6,5,15,14);
    g.drawLine(5,6,14,15);

    g.drawLine(5,15,15,5);
    g.drawLine(5,14,14,5);
    g.drawLine(6,15,15,6);
  }


  void jbInit() throws Exception
  {
    buttonStatus=0;
    hasMine=false;
    arroundMines=2;
    content = 0;
    gameOvered = false;

    setBackground(this.backgroundColor);
    setBorder(BorderFactory.createRaisedBevelBorder());
    addMouseListener(this);
  }

}